Email plugin and contact form, reply-to (reply_to) should be visitor

We’re using the Grav email plugin on our site but the contact form is not placing the user’s email address as the reply-to in the email. How can we configure it so that the person that filled out the form is set as reply_to?

The setup would be something like this
reply_to: ‘{{ }}’

However that would mean the user would email themselves if they replied to the email.

If you wanted the user to receive a copy of the submission you could do something like this to bcc: you a copy and and to: a copy to them.

from: '{{ }}'
to: '{{ }}'
bcc: ‘{{ }}’